Their fulfillment of the orders for this set looks like a cluster. The Commander deck bundle is sitting at 1 Star under reviews with everyone saying they've been shipped one deck instead of four (see here).
Besides the cancelled orders they're also sending out the wrong items which you can see on the Commander bundle page where apparently everyone is getting one random deck instead of four for $180 (see here). 75 one-star reviews and counting. From multiple posts on there apparently they're just refunding the order amount if you send the one deck back and then just cancelling and refusing to actually fulfill the order - or you get a 6 week ETA if you're one of the "lucky" ones (assuming they don't resend you one deck again in two months, lol).
I preordered from them since I don't have an LGS within an hour of me and when I've ordered online before half the time my order is cancelled anyway and then relisted in 24 hours with a markup. Really wish there was just a consistently reliable place to order from...